Subgenus (Stumpiella) Soot-Ryen, 1955

(3-7-5-0-1-2-2-16-9-0-0-0-0)
Ref. Bernard, 1983 p 21
Keen, 1971 p 70
[see also as Genus]

calyculata (P. P. Carpenter, 1857)
(3-7-5-0-1-2-2-16-9-1-0-0-0)
Ref. Keen, 1971 p 70 bw
Syn. Lithophagus (Lithophagus) calyculatus P. P. Carpenter, 1857
Ref. Bernard, 1983 p 21